This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A065425 #5 Mar 31 2012 13:20:44
%S A065425 3,67,5,13,7,17,11,37,11,31,13,29,17,41,17,37,19,41,23,53,23,113,31,
%T A065425 53,29,109,29,61,31,71,41,89,37,73,37,83,41,89,41,109,43,89,47,101,47,
%U A065425 97,61,101,53,113,53,109,61,113,59,137,59,127,61,131,71,137,67,139,67,137
%N A065425 Smallest odd prime greater than n such that the decimal expansion of its base n conversion is also prime.
%C A065425 For bases above ten, use multidigit numbers to represent the new number. See the example.
%e A065425 a(15) = 41. 17d = 12, 19d = 14, 23d = 18, 29d = 114, 31d = 21 and 37d = 27, all of which are composite. But 41d = 211 which is a prime.
%t A065425 Do[ k = PrimePi[n] + 1; While[ !PrimeQ[ FromDigits[ IntegerDigits[ Prime[k], n]]], k++ ]; Print[ Prime[k]], {n, 2, 50} ]
%Y A065425 Cf. A065720 - A065727.
%K A065425 base,nonn
%O A065425 2,1
%A A065425 _Robert G. Wilson v_, Nov 15 2001
%E A065425 More terms from _David Wasserman_, Aug 30 2002